area 12l (macaque)
Acronym: 12l
The term area 12l (macaque) refers to a portion of the orbital gyri defined on the basis of internal structure in the macaque. It is one of four components of area 12 in the orbitomedial prefrontal cortex. The other components are area 12r (macaque), area 12m (macaque), and area 12o (macaque). An identifying feature of area 12l is a band of cells in the external granular layer (II) that stain for 8b3 antibody to chondroitin sulfate proteoglycan. Other distinguishing features are large vertical fiber bundles and moderately dense horizontal fiber bundles revealed by myelin stain in the internal granular layer (IV) and internal pyramidal layer (V) ( Carmichael-1994 ). Some authors divide area 12 into only two parts, an orbital part and a lateral part ( Paxinos-2009a ).
     Its human equivalent is area 47/12l ( Ongur-2003 ). As granular prefrontal cortex, it has no equivalent in the rat ( Wallis-2012 ).

Also known as: area 12l, lateral area 12NeuroNames ID : 2985


Species Having or Lacking this Structure

All Names & Sources

Internal Structure

Cells Found There

Genes Expressed There

Locus in Brain Hierarchy

Connections

Models Where It Appears

Publications About It




BrainInfo                           Copyright 1991-present                          University of Washington